Not sure if anybody has seen these, but there are two Kickstarter projects that are offering USB-C to Lightning cables. They are only capable of charging though, so it doesn't eliminate the need for the adapter.
https://www.kickstarter.com/project...ler-double-your-charging-speed?ref=nav_search
https://www.kickstarter.com/project...allest-keyring-cable-on-steroi?ref=nav_search
Monoprice also has a new USB-C to USB adapter that looks interesting, it gets rid of the cable: http://www.monoprice.com/Product?c_id=103&cp_id=10330&cs_id=1033001&p_id=13507&seq=1&format=2
Yeah, I ordered the Monoprice adaptor, which looks to be 3.0, which is nice. Most of the USB-C to USB-A cables I've seen so far are just 2.0. Will report how it fares after I get it on Monday.